3 ms·

> "The core of the matter lays in establishing a reference point for our measurement, where light remains unaffected by Earth's rotational effect. Given our ina

> "The core of the matter lays in establishing a reference point for our measurement, where light remains unaffected by Earth's rotational effect. Given our inability to halt Earth's from spinning, we devised a workaround: splitting the optical fiber into two equal-length coils and connecting them via an optical switch," explains lead author Raffaele Silvestri. > By toggling the switch on and off, the researchers could effectively cancel the rotation signal at will, which also allowed them to extend the stability of their large apparatus. "We have basically tricked the light into thinking it's in a non-rotating universe," says Silvestri. "Experimental observation of Earth's rotation with quantum entanglement" (2024) https://www.science.org/doi/10.1126/sciadv.ado0215 https://www.science.org/doi/10.1126/sciadv.ado0215 Sagnac interferometer: https://en.wikipedia.org/wiki/Sagnac_effect https://en.wikipedia.org/wiki/Sagnac_effect

robin_reala 2y ago
Given our inability to halt Earth's from spinning Good to have some baseline assumptions!
las_balas_tres 2y ago
So almost like an optical wheatstone bridge ?
- westurner 2y ago
  Wheatstone bridge > Modifications of the basic bridge: https://en.wikipedia.org/wiki/Wheatstone_bridge#Modifications_of_the_basic_bridge https://en.wikipedia.org/wiki/Wheatstone_bridge#Modification... : > Carey Foster bridge, for measuring small resistances; Kelvin bridge, for measuring small four-terminal resistances; Maxwell bridge, and Wien bridge for measuring reactive components; Anderson's bridge, for measuring the self-inductance of the circuit, an advanced form of Maxwell's bridge Is there a rectifier for gravitational waves, and what would that do? Diode bridge > Current flow: https://en.wikipedia.org/wiki/Diode_bridge#Current_flow https://en.wikipedia.org/wiki/Diode_bridge#Current_flow And actually again, electron flow is fluidic: - "How does electricity find the "Path of Least Resistance"?" (and the other paths) https://www.youtube.com/watch?v=C3gnNpYK3lo https://www.youtube.com/watch?v=C3gnNpYK3lo - "Observation of current whirlpools in graphene at room temperature" (2024) https://news.ycombinator.com/item?id=40360684 https://news.ycombinator.com/item?id=40360684 : > How are spin currents and vorticity in electron vortices related? But, back to photons from electrons; like in a wheatstone bridge. Are photonic fields best described with rays, waves, or as fluids in gravitational vortices like in SPH and SQS and CFD? (Superhydrodynamic, Superfluid Quantum Space, Computational Fluid Dynamics) Actually, photons do interact with photons; as phonons in matter: "Quantum vortices of strongly interacting photons" (2024) https://www.science.org/doi/10.1126/science.adh5315 https://www.science.org/doi/10.1126/science.adh5315 https://news.ycombinator.com/item?id=40600762 https://news.ycombinator.com/item?id=40600762 Perhaps there's an even simpler sensor apparatus for this experiment?

robin_reala 2y ago

Given our inability to halt Earth's from spinning Good to have some baseline assumptions!

las_balas_tres 2y ago

So almost like an optical wheatstone bridge ?

westurner 2y ago
Wheatstone bridge > Modifications of the basic bridge: https://en.wikipedia.org/wiki/Wheatstone_bridge#Modifications_of_the_basic_bridge https://en.wikipedia.org/wiki/Wheatstone_bridge#Modification... : > Carey Foster bridge, for measuring small resistances; Kelvin bridge, for measuring small four-terminal resistances; Maxwell bridge, and Wien bridge for measuring reactive components; Anderson's bridge, for measuring the self-inductance of the circuit, an advanced form of Maxwell's bridge Is there a rectifier for gravitational waves, and what would that do? Diode bridge > Current flow: https://en.wikipedia.org/wiki/Diode_bridge#Current_flow https://en.wikipedia.org/wiki/Diode_bridge#Current_flow And actually again, electron flow is fluidic: - "How does electricity find the "Path of Least Resistance"?" (and the other paths) https://www.youtube.com/watch?v=C3gnNpYK3lo https://www.youtube.com/watch?v=C3gnNpYK3lo - "Observation of current whirlpools in graphene at room temperature" (2024) https://news.ycombinator.com/item?id=40360684 https://news.ycombinator.com/item?id=40360684 : > How are spin currents and vorticity in electron vortices related? But, back to photons from electrons; like in a wheatstone bridge. Are photonic fields best described with rays, waves, or as fluids in gravitational vortices like in SPH and SQS and CFD? (Superhydrodynamic, Superfluid Quantum Space, Computational Fluid Dynamics) Actually, photons do interact with photons; as phonons in matter: "Quantum vortices of strongly interacting photons" (2024) https://www.science.org/doi/10.1126/science.adh5315 https://www.science.org/doi/10.1126/science.adh5315 https://news.ycombinator.com/item?id=40600762 https://news.ycombinator.com/item?id=40600762 Perhaps there's an even simpler sensor apparatus for this experiment?